[AUTOPATCHER-CORE] Upgrade rubygem-msgpack to 1.8.4 for CVE-2026-54522

[azurelinux-ci-jwt-app]

[AUTOPATCHER-CORE] Upgrade rubygem-msgpack to 1.8.4 for CVE-2026-54522
Upgrade pipeline run -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1176845&view=results

buddy build -> https://dev.azure.com/mariner-org/mariner/_build/results?buildId=1176860&view=results

[azure-pipelines]

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[Kanishk Bansal (Kanishk-Bansal)]

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